Materials of different



3 Sheets-Sheet 2 X R GEORGE.

'MACHINE FOR SBPARATING AND GONGENTRATINGORBS AND OTHER MATERIALS OFDIFFERENT SPECIFIG GRAVVITIES.

- No. 106,048. Patented Aug. 2,1870.

' k 'Lg W; IN MTM 8 sheets sheet 8 i R. GEORGE. MACHINE FOR SBPANATINGAND GONQBNTRATING oREs AND oTH'BR MATBRILS OP DIFPBNBNT SPBGIFIGGRAVITIES.

N No1o6,048. Pazend Aug. 2,1870.`

-throughout theseveral elevationsand sections.

mms, or any other grinding machinery, and prevent ing apparatus ofmercury and the other appliances gical treatment.

jFonrt-hly, to sepa'atel mineml coal, graph'ite clay,

sepaiated, it is necessary to assort and classify them in jam-cr'ushers,rollcrs, or stamps, and then passed strat vRosner GEORGE, or 'DENVERoIrY; ooLoRADo rnnnrronr.

Letters Patent N 106,048, dated 'ugiist 24, 1.870.

IMPR OVEME'I' I MACHINE FOR vSElPAIiiAfl'HTG' AND CCENTRATING' GRES ANDOTHER MATERILS OF DIFFERENT SPECIFIC GRAVITIES.

d The Scheule refan'e to in these v'Letters Patent and making pan: ox mesame To all whom it 'nuty conccrn:

. Be it known that I, Ronnnr Gnonen, of Denver Uity, in the county ofArapahoe'and Territoryof Uulorado, have invented a new and usefnllMachine for Separatiug and Conoentrating Materials of DifferentSpecific Gravity, metals,rocks, allurials, and any metalhn'gical `andorganic fossil snbstances contained in an admixtnre or natural strat-a,or iu a chemical combination; and do hereby declare that the followingis a fall, clear, and cxact description of the construction andoperation of the same, reference being had to the annexedldiawingsmaking a part of this speciiication, iu whichi Figure I, shect 1, is aplan. FigureII, sheet 2, is a front elevation.

i Figure III, sheet 3, is a side elcvat-ion.

a Figure IV, sheet 3, is a trans\'erse section on the line A B.`

Similar letters, in* blue ink, refer to 'similar parts The nature ofmy'im'ention consists in the construction of. a. machine possesing thefollowing properties, and designed-' irst, .to sim'plify the process ofconcentrating and1 'K separating all kinils of useful andi'aluable oresand= i' mineral substances, during the process of dress'ing (sepVparating) from rocky matter-s, andl other injurious or extraneonssubstances, for the purpose of theirsubseqnent metallurgical treatment..Secondly, to save, unaided by any other apparatus or appliancewhatsoever, all of the preciou's meta-is o'r other useful and val'uablemineral snbstances undergoing the process of crushin g and separation instam pthe great `loss accrning by the use .of the amalgamatheretoforeused, to' save and concentrate the useful and valnable miuerals fortheir subse'quent met-allur- Thirdly, to 'save the preciousnietalscontained in alluvials, orvso-called dry placers.

and'mincmls for paint-s, &c .,-f rom injurious'and'ex-'- traneoussnbstances, as 'iron pyritfes, slate, sand, &c. To enable others skilledin'the alt to make and use my invention, I will proceed to dcscribe theconstrnction and operation of .my machine.

a The machine consists of two maml parts, viz., the

outside frame-work K and the separating-chamher I.- l In order to charge,the machinel with materials to bo according to their size; 'if'theyconsist of rocky matters m large lumps, they ought to be c'rnshed eitherthrough a series of seives, 'to render them fit for chargin g. When thematerials to be separatcd are found in alluvials,'ns is frequently thecase of the precious meta-is, in dry placers,*&c., it will sniiice toseparate the larger rock or gravcl by merely screening it..

The material thus assorted' is charged into the hopper A, and spreadevenly.

The damper al is then opened, by the screws a2 a", a suflicicnt' widthto fill the ilutes of the roller B.

The motive power to work the machine may be applied either to the sbaftof the roiler B, or to the shaft G; in either case, the intermediatewheel F willtransmit 'the motion from B to G, or G toiB. W

To the shaft G are fastened and attached the` lifting-wheels (ll and'dz,the cam-Wheels c' and-eand the spur-wheel II.

The fraic-\\'oi'k of the separating-chamber I rest on its front part onIndiarnbber cushions or metalli'c spi'ingS, marked 'vI 1:20, which saidcnshions or Springs are kept in position by boxes fat-ened to andsupported 'by the front bar L, of the main frame-work K.

The rear partof the separating-chamberis suspended by the swivels i* iz,attached to the main frame-work When the machine is set in motion, the'ioller B, revolving, discharges' the contents at about the center oftheraised back of the separating-chamber I, whereby the same are eyenlyspread over the rear side of the sieve O', at the same time theseparating-chamb'er I is lifted by the wheels d1 dz, which causes 'thecharged materials to oscillate rertically on the sieves, while thecam-Wheels cl o* move the separating-chamher borizontally backu'ard,until the prolongations q1 g2 slide ofl' from the engaged tooth of thewheels c1 ez, at which moment the Springs f2 reverse the motion of theseparating-chamber I, and force it to the front bar L,

producing thereby a horizontal .concussion of thecharged materials,which forces the same i'onisieve cI to sicve cz and c, iu 'order'tofacilitate the forcing or sliding of the. charged materials, morespeedily towar'd the front of the machine. The lseparating-chamher I maybe raised iu' the rear by the swivels i' iz, 'in such a mann'er 'thatthe sieres cl cz c'i will be placed on an incline toward the front ofthemaclrlne.

The Velocity of the st'rokeof theprings l-24 is regulated by the screwsh* hi. The separating-chamber I is connected with the .slotted pipe C bymeans of leather,rubber, or metallic paching x, snfliciently pli'able,so as not 'to interfere with the'oscillating and rising movements of theseparating-chamber.

If the machine is chargcd with materials iii a dry state, air is forcedin under sieves cl cio3 bya bellows fan, or other blowing apparatns,connected with the at the same time,

the troughs ml m2 111.",as

v pass, this will pipe O. The continuous oscillations of the materialson the sieres c' o c" will facilitnte the passing npward of the airthrough the ch'arged materials, wheiehy the pnrtioles of greaterspeeiiic giarity aecumnlate on the bottom of the sieres, while thelighter ones aremised to the surface of the agitated materials.

To separnte the heavier particles from the overlying iighter ones, in acontinuous manner, the sieve o' 'is orerlapped byA the metallic stripj',which said strip, forms a rim over the edge of o* in like mam-ier c' isoverlapped by j', and c1 b 'j The overlaps j' j'- j are 'secu'rclyfastened to the lnrslc'k'k1 which said bars k' k kl are fltstened anda.tl;.'\ohed to the separating-ohmnber-by'the screws Z' i, hy means ofn'hieh seren's the said bars kl k' If can 'he' raised and lowered,therehy u'idening and narrowing the intelstlees formed hy the.etripsy'fj'ig'a and the sieres c' o' clfia's may be required for theadmission. of the. partielesof greater specific gravity into the troughsof which said troughs, marked m' mam, are pmvided with a morable anddetached hottom, suspended Scale-like, as scen by p', and which saidhot-tom can ,be raised or depressed by means of theiegnlating-screws n'n, to such a degree as to form anl'joritice suflieient to allow theseparated materials to ;make their exit att-he edge o; while, in thismanuer,

the vnlahleorheavierpartieles make their exitt-hmugh above -described,the lighter orexhausted maten'als have to pass over the dalnper i'. -Thelatter is so eonstructed that it can he easily raised or lowered in acnrrilinear' manner, as the na tnre of'materials ou the sieres cl c2 o'may require, fora perfect separaton. If the damper 'r is`.raisedv by'therogulatilig-sere-r q' q, with which it is provided,-"so l'ar as to tbrma small interstice between it and the overlapj, through which thepartieles from the undermost ot' the materials sliding over the damperrcan aifrd theoperatora criterion-to determine whether all useful 'andvaluable materials are exhausl ed and sie ed or not; vlf there are anypassing theletln'ough, the same will be saved by passing over the apront, while the exhausted und extraneous materials are carried oil'over theapmn u.

Ifthe charge is in a wet state, as, for instance, the tailings from`stamp-mills, water may be iutroduced, instead of air, or;water and airtogether, in a. similar manner as that stated for the introduction ot'air alone, through the pipe O.

The Velocity of the flnted roller B'for chargingis calculated to heliteeu revolutious per minute, and, as-

four'flutes, with a depth of the roller is provided with an inch each,and being six feet long, the capacity for lcharging will be 333.84 cuhicinches per minute.

Snpposing that the charge consists of common goldbearingquaitz oralluriai, the machine will lsepal'ate eiglit tous and fourteen hundredpounds in one hour,

or in Yten hours, the gold coatained in eighty-seven tons of quarts oralluvial, a capacity aimost higher than practicable operation willreqnize in any of the afo'resaid mses. The appiimhility and utility ofmy machine 'are erident from the 'oregoing.

What I elaim as my inventon, and deslre to secure by Letters Patent, is-I 1. A maehinefor separating, ooncentmting, and saving the precionsmetals, and other valuabie-and useful minelnls or fossil substances, asthe same exist and 'are found, either in a orude state or artiiiciallyproduced by chemicalcombiuations or technical admixtures, armnged,eonstructed, and operated in the' mannerand for the purposeshereinbefore deserihed and set forth.

2. The sievesic' c'c'l, together with theirarrangements and connectionsto form the adjustahie intersiiees.

3. The tronghs 'm' mz mi, with their movahle and detached bottoms, o.

4. The damper r, as arrauged and deserilmd.

5. The lifting'wheels d2 d, for causing the oscillation, and thecam-Wheels e* ci, to promte the discharge of the' materials, togetherwith their attachments and manner of operating.

ii. The flnted rollcr B and the hopper A, together with theirfasteniugs'and manner' of construction and application.

7. `The cushions, being, either India rnbber or,

memllic'spring, mrked 'v' o' vi, and the hoxes,'\lvhere-` by they areseenred and kept ln position.

8. The slotted pipe O, with theleather, ruhher, or metallio conneotions,which are suflieiently pilable to admit of .the free and thelnnimpededmotion of the separatig-chamber I, 'and its manner of attachment, asdesciibed and set forth.

9. The Springs f'f', together with theirappiiances, mode ofreguiating,and manner of operation.

10. The su'ivels i' i, together with theirflapplication, as deseribcdandset forth'.

In witness whereof I .have herennto set my hand' and subscribed my namcthis 7th day of July, A. D.

ROBERT GEORGE. Witnesses;

E.-P. Wanna, Lotus SonnLs.

